﻿/*
* [The "BSD Licence"]
* Copyright (c) 2011-2013 Chundong Gao
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

using System;

namespace Gimela.Toolkit.CommandLines.Foundation
{
    public static class CommandLineConsole
    {
        public static void OnCommandLineException(object sender, CommandLineExceptionEventArgs e)
        {
            if (e == null)
                throw new ArgumentNullException("e");

            Console.ForegroundColor = ConsoleColor.Red;
            Console.WriteLine(e.Exception.Message);
            Console.ResetColor();

            ICommandLine commandLine = sender as ICommandLine;
            if (commandLine != null)
            {
                commandLine.Terminate();
            }

            Environment.Exit(0);
        }

        public static void OnCommandLineUsage(object sender, CommandLineUsageEventArgs e)
        {
            if (e == null)
                throw new ArgumentNullException("e");

            Console.ForegroundColor = ConsoleColor.DarkGreen;
            Console.WriteLine(e.Usage);
            Console.ResetColor();
        }

        public static void OnCommandLineDataChanged(object sender, CommandLineDataChangedEventArgs e)
        {
            if (e == null)
                throw new ArgumentNullException("e");

            Console.ForegroundColor = ConsoleColor.Green;
            Console.Write(e.Data);
            Console.ResetColor();
        }
    }
}
